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Bioretention Area Inspection and <br />Maintenance Checklist <br />Property Address: Property Owner: The Board of Trustees of the Leland Stanford Junior i Iniversitv <br />Treatment Measure No.: Date of Inspection: <br />Inspector(s): <br />Defect Conditions When Maintenance Is <br />Needed <br />1. Standing Water When water stands in the bioretention <br />area between storms and does not drain <br />within five days afterrainfall. <br />2. Trash and Debris Trash and debris accumulated in the <br />Accumulation bioretention area. <br />3. Sediment Evidence of sedimentation in <br />bioretention area. <br />4. Erosion Channels have formed around inlets, <br />there are areas of bare soil, and/orother <br />evidence of erosion. <br />5. Vegetation Vegetation is dead, diseased and/or <br />overgrown. <br />6. Mulch Mulch is missing or patchy in <br />appearance. Areas of bare earth are <br />exposed, or mulch layer is less than 3 <br />inches in depth. <br />7. Miscellaneous Any condition not covered above that <br />needs attention in order for the <br />bioretention area to function as <br />designed. <br />ATTY/AGR/2017.072/STANFORD - STMMA <br />REV: 04-05-17 PR <br />Type of Inspection: ❑ Quarterly ❑ Pre -Wet Season <br />❑ After heavy runoff ❑ End of Wet Season <br />oOther: ❑ Annually <br />Maintenance Comments (Describe maintenance Results Expected When <br />Needed? (Y/N) completed and if needed maimenancewas Maintenance Is Performed <br />not conducted, note when it will be done) <br />There should be no areas of standing <br />water once inflow has ceased. Any of <br />the following may apply: sediment or <br />trash blockages removed, improved <br />grade from head to foot of bioretention <br />area, or added underdrains. <br />Trash and debris removed from <br />bioretention area and disposed of <br />properly. <br />Material removed so that there is no <br />clogging or blockage. Material is <br />disposed ofproperly. <br />Obstructions and sediment removed so <br />that water flows freely and disperses <br />over a wide area. <br />Obstructions and sediment are <br />disposed ofproperly. <br />Vegetation is healthy and attraetivein <br />appearance. <br />All bare earth is covered, except mulch <br />is kept 6 inches away from trunks of <br />trees and shrubs. Mulch is even in <br />appearance, at a depth of 3 inches. <br />Meet the design specifications. <br />Stanford in Redwood City - Phase 1 <br />